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-rw-r--r--drivers/target/iscsi/iscsi_target.c1
-rw-r--r--drivers/target/iscsi/iscsi_target_configfs.c1
-rw-r--r--drivers/target/iscsi/iscsi_target_login.c1
-rw-r--r--drivers/target/iscsi/iscsi_target_parameters.c16
-rw-r--r--drivers/target/iscsi/iscsi_target_util.c12
-rw-r--r--drivers/target/target_core_file.c3
-rw-r--r--drivers/target/target_core_pscsi.c47
-rw-r--r--drivers/target/target_core_sbc.c72
8 files changed, 90 insertions, 63 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 6fad3e9fd389..dbd66d321b32 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4842,6 +4842,7 @@ int iscsit_release_sessions_for_tpg(struct iscsi_portal_group *tpg, int force)
continue;
}
atomic_set(&sess->session_reinstatement, 1);
+ atomic_set(&sess->session_fall_back_to_erl0, 1);
spin_unlock(&sess->conn_lock);
list_move_tail(&se_sess->sess_list, &free_list);
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 83bb55b94434..f6169f722991 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1934,6 +1934,7 @@ static int lio_tpg_shutdown_session(struct se_session *se_sess)
return 0;
}
atomic_set(&sess->session_reinstatement, 1);
+ atomic_set(&sess->session_fall_back_to_erl0, 1);
spin_unlock(&sess->conn_lock);
iscsit_stop_time2retain_timer(sess);
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index e929205e28c6..7e732e98bf17 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -195,6 +195,7 @@ int iscsi_check_for_session_reinstatement(struct iscsi_conn *conn)
initiatorname_param->value) &&
(sess_p->sess_ops->SessionType == sessiontype))) {
atomic_set(&sess_p->session_reinstatement, 1);
+ atomic_set(&sess_p->session_fall_back_to_erl0, 1);
spin_unlock(&sess_p->conn_lock);
iscsit_inc_session_usage_count(sess_p);
iscsit_stop_time2retain_timer(sess_p);
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index d4f9e9645697..e0a90293bfc0 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -804,22 +804,6 @@ static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
SET_PSTATE_REPLY_OPTIONAL(param);
/*
- * The GlobalSAN iSCSI Initiator for MacOSX does
- * not respond to MaxBurstLength, FirstBurstLength,
- * DefaultTime2Wait or DefaultTime2Retain parameter keys.
- * So, we set them to 'reply optional' here, and assume the
- * the defaults from iscsi_parameters.h if the initiator
- * is not RFC compliant and the keys are not negotiated.
- */
- if (!strcmp(param->name, MAXBURSTLENGTH))
- SET_PSTATE_REPLY_OPTIONAL(param);
- if (!strcmp(param->name, FIRSTBURSTLENGTH))
- SET_PSTATE_REPLY_OPTIONAL(param);
- if (!strcmp(param->name, DEFAULTTIME2WAIT))
- SET_PSTATE_REPLY_OPTIONAL(param);
- if (!strcmp(param->name, DEFAULTTIME2RETAIN))
- SET_PSTATE_REPLY_OPTIONAL(param);
- /*
* Required for gPXE iSCSI boot client
*/
if (!strcmp(param->name, MAXCONNECTIONS))
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 231e2e0e5894..112e6733f8d5 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -731,21 +731,23 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown)
{
struct se_cmd *se_cmd = NULL;
int rc;
+ bool op_scsi = false;
/*
* Determine if a struct se_cmd is associated with
* this struct iscsi_cmd.
*/
switch (cmd->iscsi_opcode) {
case ISCSI_OP_SCSI_CMD:
- se_cmd = &cmd->se_cmd;
- __iscsit_free_cmd(cmd, true, shutdown);
+ op_scsi = true;
/*
* Fallthrough
*/
case ISCSI_OP_SCSI_TMFUNC:
- rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
- if (!rc && shutdown && se_cmd && se_cmd->se_sess) {
- __iscsit_free_cmd(cmd, true, shutdown);
+ se_cmd = &cmd->se_cmd;
+ __iscsit_free_cmd(cmd, op_scsi, shutdown);
+ rc = transport_generic_free_cmd(se_cmd, shutdown);
+ if (!rc && shutdown && se_cmd->se_sess) {
+ __iscsit_free_cmd(cmd, op_scsi, shutdown);
target_put_sess_cmd(se_cmd);
}
break;
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 3f27bfd816d8..dee7dfdf203a 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -707,8 +707,7 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
- if (ret)
- target_complete_cmd(cmd, SAM_STAT_GOOD);
+ target_complete_cmd(cmd, SAM_STAT_GOOD);
return 0;
}
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index ecc5eaef13d6..b0bc7cee6ffe 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -158,7 +158,7 @@ static void pscsi_tape_read_blocksize(struct se_device *dev,
buf = kzalloc(12, GFP_KERNEL);
if (!buf)
- return;
+ goto out_free;
memset(cdb, 0, MAX_COMMAND_SIZE);
cdb[0] = MODE_SENSE;
@@ -173,9 +173,10 @@ static void pscsi_tape_read_blocksize(struct se_device *dev,
* If MODE_SENSE still returns zero, set the default value to 1024.
*/
sdev->sector_size = (buf[9] << 16) | (buf[10] << 8) | (buf[11]);
+out_free:
if (!sdev->sector_size)
sdev->sector_size = 1024;
-out_free:
+
kfree(buf);
}
@@ -318,9 +319,10 @@ static int pscsi_add_device_to_list(struct se_device *dev,
sd->lun, sd->queue_depth);
}
- dev->dev_attrib.hw_block_size = sd->sector_size;
+ dev->dev_attrib.hw_block_size =
+ min_not_zero((int)sd->sector_size, 512);
dev->dev_attrib.hw_max_sectors =
- min_t(int, sd->host->max_sectors, queue_max_hw_sectors(q));
+ min_not_zero(sd->host->max_sectors, queue_max_hw_sectors(q));
dev->dev_attrib.hw_queue_depth = sd->queue_depth;
/*
@@ -343,8 +345,10 @@ static int pscsi_add_device_to_list(struct se_device *dev,
/*
* For TYPE_TAPE, attempt to determine blocksize with MODE_SENSE.
*/
- if (sd->type == TYPE_TAPE)
+ if (sd->type == TYPE_TAPE) {
pscsi_tape_read_blocksize(dev, sd);
+ dev->dev_attrib.hw_block_size = sd->sector_size;
+ }
return 0;
}
@@ -410,7 +414,7 @@ static int pscsi_create_type_disk(struct se_device *dev, struct scsi_device *sd)
/*
* Called with struct Scsi_Host->host_lock called.
*/
-static int pscsi_create_type_rom(struct se_device *dev, struct scsi_device *sd)
+static int pscsi_create_type_nondisk(struct se_device *dev, struct scsi_device *sd)
__releases(sh->host_lock)
{
struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr;
@@ -437,28 +441,6 @@ static int pscsi_create_type_rom(struct se_device *dev, struct scsi_device *sd)
return 0;
}
-/*
- * Called with struct Scsi_Host->host_lock called.
- */
-static int pscsi_create_type_other(struct se_device *dev,
- struct scsi_device *sd)
- __releases(sh->host_lock)
-{
- struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr;
- struct Scsi_Host *sh = sd->host;
- int ret;
-
- spin_unlock_irq(sh->host_lock);
- ret = pscsi_add_device_to_list(dev, sd);
- if (ret)
- return ret;
-
- pr_debug("CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%llu\n",
- phv->phv_host_id, scsi_device_type(sd->type), sh->host_no,
- sd->channel, sd->id, sd->lun);
- return 0;
-}
-
static int pscsi_configure_device(struct se_device *dev)
{
struct se_hba *hba = dev->se_hba;
@@ -546,11 +528,8 @@ static int pscsi_configure_device(struct se_device *dev)
case TYPE_DISK:
ret = pscsi_create_type_disk(dev, sd);
break;
- case TYPE_ROM:
- ret = pscsi_create_type_rom(dev, sd);
- break;
default:
- ret = pscsi_create_type_other(dev, sd);
+ ret = pscsi_create_type_nondisk(dev, sd);
break;
}
@@ -607,8 +586,7 @@ static void pscsi_free_device(struct se_device *dev)
else if (pdv->pdv_lld_host)
scsi_host_put(pdv->pdv_lld_host);
- if ((sd->type == TYPE_DISK) || (sd->type == TYPE_ROM))
- scsi_device_put(sd);
+ scsi_device_put(sd);
pdv->pdv_sd = NULL;
}
@@ -1083,7 +1061,6 @@ static sector_t pscsi_get_blocks(struct se_device *dev)
if (pdv->pdv_bd && pdv->pdv_bd->bd_part)
return pdv->pdv_bd->bd_part->nr_sects;
- dump_stack();
return 0;
}
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 35180fbaa460..8bf7a06c25a9 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -446,8 +446,11 @@ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool succes
* been failed with a non-zero SCSI status.
*/
if (cmd->scsi_status) {
- pr_err("compare_and_write_callback: non zero scsi_status:"
+ pr_debug("compare_and_write_callback: non zero scsi_status:"
" 0x%02x\n", cmd->scsi_status);
+ *post_ret = 1;
+ if (cmd->scsi_status == SAM_STAT_CHECK_CONDITION)
+ ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
goto out;
}
@@ -765,6 +768,59 @@ sbc_check_dpofua(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb)
return 0;
}
+/**
+ * sbc_parse_verify - parse VERIFY, VERIFY_16 and WRITE VERIFY commands
+ * @cmd: (in) structure that describes the SCSI command to be parsed.
+ * @sectors: (out) Number of logical blocks on the storage medium that will be
+ * affected by the SCSI command.
+ * @bufflen: (out) Expected length of the SCSI Data-Out buffer.
+ */
+static sense_reason_t sbc_parse_verify(struct se_cmd *cmd, int *sectors,
+ u32 *bufflen)
+{
+ struct se_device *dev = cmd->se_dev;
+ u8 *cdb = cmd->t_task_cdb;
+ u8 bytchk = (cdb[1] >> 1) & 3;
+ sense_reason_t ret;
+
+ switch (cdb[0]) {
+ case VERIFY:
+ case WRITE_VERIFY:
+ *sectors = transport_get_sectors_10(cdb);
+ cmd->t_task_lba = transport_lba_32(cdb);
+ break;
+ case VERIFY_16:
+ *sectors = transport_get_sectors_16(cdb);
+ cmd->t_task_lba = transport_lba_64(cdb);
+ break;
+ default:
+ WARN_ON_ONCE(true);
+ return TCM_UNSUPPORTED_SCSI_OPCODE;
+ }
+
+ if (sbc_check_dpofua(dev, cmd, cdb))
+ return TCM_INVALID_CDB_FIELD;
+
+ ret = sbc_check_prot(dev, cmd, cdb, *sectors, true);
+ if (ret)
+ return ret;
+
+ switch (bytchk) {
+ case 0:
+ *bufflen = 0;
+ break;
+ case 1:
+ *bufflen = sbc_get_size(cmd, *sectors);
+ cmd->se_cmd_flags |= SCF_SCSI_DATA_CDB;
+ break;
+ default:
+ pr_err("Unsupported BYTCHK value %d for SCSI opcode %#x\n",
+ bytchk, cdb[0]);
+ return TCM_INVALID_CDB_FIELD;
+ }
+ return TCM_NO_SENSE;
+}
+
sense_reason_t
sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
{
@@ -835,7 +891,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
cmd->execute_cmd = sbc_execute_rw;
break;
case WRITE_10:
- case WRITE_VERIFY:
sectors = transport_get_sectors_10(cdb);
cmd->t_task_lba = transport_lba_32(cdb);
@@ -850,6 +905,12 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
cmd->execute_rw = ops->execute_rw;
cmd->execute_cmd = sbc_execute_rw;
break;
+ case WRITE_VERIFY:
+ ret = sbc_parse_verify(cmd, &sectors, &size);
+ if (ret)
+ return ret;
+ cmd->execute_cmd = sbc_execute_rw;
+ goto check_lba;
case WRITE_12:
sectors = transport_get_sectors_12(cdb);
cmd->t_task_lba = transport_lba_32(cdb);
@@ -1048,9 +1109,10 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
return ret;
break;
case VERIFY:
- size = 0;
- sectors = transport_get_sectors_10(cdb);
- cmd->t_task_lba = transport_lba_32(cdb);
+ case VERIFY_16:
+ ret = sbc_parse_verify(cmd, &sectors, &size);
+ if (ret)
+ return ret;
cmd->execute_cmd = sbc_emulate_noop;
goto check_lba;
case REZERO_UNIT: